A version of the Translog demand system is compared with the Almost Ideal demand model within a time series setting, where variables are nonstationary, by testing both models for the theoretical demand propositions of 'homogeneity, symmetry and negativity' and by comparing out of sample...

Techniques for determining the number of stochastic trends generating a set of non-stationary panel data are applied to budget shares for a number of commodity groups from the Family Expenditure Survey (FES) for the UK for the years 1973-2001. It is argued that some stochastic trends in macro...